R-312AW
R-312AK
In the interest of user-safety the oven should be restored to its original
condition and only parts identical to those specified should be used.
TABLE OF CONTENTS
Page
PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICE TO
AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY ................... INSIDE FRONT COVER
BEFORE SERVICING ........................................................................................................................................... 1
MICROWAVE MEASUREMENT PROCEDURE ................................................................................................... 2
FOREWORD .......................................................................................................................................................... 3
PRODUCT SPECIFICATIONS .............................................................................................................................. 4
GENERAL INFORMATION ................................................................................................................................... 4
OPERATION .......................................................................................................................................................... 6
TROUBLESHOOTING GUIDE .............................................................................................................................. 9
TEST PROCEDURE ............................................................................................................................................ 10
TOUCH CONTROL PANEL ................................................................................................................................. 15
COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE ................................................................ 19
PICTORIAL DIAGRAM ........................................................................................................................................ 25
POWER UNIT CIRCUIT ...................................................................................................................................... 26
CONTROL PANEL CIRCUIT ............................................................................................................................... 27
PRINTED WIRING BOARD ................................................................................................................................. 28
PARTS LIST ........................................................................................................................................................ 29
PACKING AND ACCESSORIES ......................................................................................................................... 33
S5707R312APK/
R-312AW
R-312AK
MICROWAVE OVEN
MODELS
R-312AW
SERVICE MANUAL
SHARP ELECTRONICS CORPORATION
Service Headquarters: Sharp Plaza, Mahwah, New Jersey 07430-2135
DEF.
LBS.
QTY. CHECK
ON
POWER
LEVEL
TIMER
CLOCK
COMPU
DEFROST
POPCORN
DINNER
PLATE
BAKED
POTATO
FRESH
ROLL / MUFFIN
BEVERAGE
REHEAT
CASSEROLE
FRESH
VEGETABLE
FROZEN
ROLL / MUFFIN
Ground meat
Steaks / chops
Chicken pieces
1
2
3
STOP
CLEAR
START
MINUTE PLUS
To adjust quantity-touch pad again
INSTANT ACTION
